Dr. Zheng Zhu Topp is a Oregon state licensed medical doctor, specializing in Hematology/Oncology. Graduated Magna Cum Laude from University of Mississippi Medical Center, completed residency training in University of Virginia Medical Center, and completed the Hematology/Oncology specialist training at Scripps Green Hospital. Dr. Topp currently is working at Providence Health, located in 9135 Southwest Barnes Rd Portland OR 97225 Please call +1- to contact. | |||